light tight的用法和樣例：
例句
用作形容詞 (adj.)
- Some objects do not allow light to go through them.
有些物體是不透光的。 - The ability to gather oxygen with its arm webbing enables it to live in the oxygen minimum layer of the ocean, where there is virtually no light penetration.
其觸手間的薄翼可以吸取水中的氧元素，這種能力使其能夠在海洋里暗不透光的低含氧層中生存。
